RDBMS あうるでぃうびいえむえすじゃありませんでした
a uru diubiiemuesuja arimasendeshita

Noun
Desu Copula

The polite, past negative form of RDBMS

1. Was not a DBMS.; Wasn't a DBMS.

Past/Perfective
Negative
Polite
Terminal Form
Computing